Different Standards for Carbon Steel Flanges

Standard system for carbon steel flanges
1. DIN standard
1) Common pressure grades: PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160, PN250
2) Flange sealing face: Raised face DIN2526C Raised flange grooued acc. DIN2512N Grooved face
2. ANSI standard
1) Common pressure grades: CL150, CL300, CL600, CL900, CL1500
2) Flange sealing surface: ANSI B 16.5 RF flange
3. JIS standard:
1) Common pressure levels: 10K, 20K, 30K.